The list has been announced in stages over recent days - with the individual at the top spot revealed today.
We're honouring people who have risen in prominence or significantly enhanced their reputations this year due, at least in part, to their comms prowess.
The full list:
20. Munya Chawawa, comedian, presenter & writer
19. Adele, award-winning & multimillion-selling singer-songwriter
18. Joe Wicks, The Body Coach
17. John Vincent, chief executive & co-founder, Leon Restaurants
16. Andy Burnham, Mayor of Greater Manchester
15. Kate Nicholls, chief executive, UKHospitality
14. Lewis Hamilton, Formula 1 motor racing driver, activist & entrepreneur
13. Captain Sir Thomas Moore, charity fundraiser, centenarian & former British Army officer
12. James Watt, co-founder, Brewdog
11. Professor Devi Sridhar, University of Edinburgh (holds chair in Global Public Health)
10. Sir David Attenborough, broadcaster, naturalist & environmentalist
9. Dame Sharon White, chairman, John Lewis Partnership
8. John Boyega, actor, producer & activist
7. Annemarie Plas, 'Clap for Carers' campaigner
6. Dave Lewis, Tesco chief executive (and other UK supermarket bosses)
Click on the names below to read about the people in the top five...